"Whoa, were unable to do our job because of Covid, please stop deliveries.."
Nothing postal gets into Aus without going through Auspost and customs no matter who sends it or how it is sent, and neither has any information whatsoever about this rubbish that is being posted around the US about suspension of deliveries to Australia. See FAQ #3, the answer is the only answer that is relevant.
I have spoken to them at length, and may I remind you that these people are the only ones relevant in this issue and not the blogs you have linked, that they are not NOT accepting postage of any sort from the US, and yes there are delays but they are all internal and have got nothing to do with international posters.
If there is any problem with parcel services to Aus from the US is has been implemented unilaterally and is concerning and you should contact your own people to get this misinformation corrected, in the United States.
Two days ago I received an item purchased online from the US three weeks ago, and this morning another item from Russia purchased on eBay approx two weeks ago.
The post is open and up and running.